In addition to releasing the Creation Kit and Skyrim Workshop, today we’re allowing players to experience Skyrim as you’ve never seen it before with the Skyrim High-Resolution Texture Pack. Before downloading it from Steam, make sure your system requirements exceed Skyrim’s recommended specs before attempting to install, including Windows Vista/7, a minimum of 4GB of system RAM, and a DirectX 9.0c compatible NVIDIA or AMD ATI video card with at least 1 GB of RAM and the latest drivers.

Rossafur wrote on Feb 7, 2012, 15:03:Now comes the process of figuring out if this replaces *all* of the textures, and which -if not all, are better than the best unofficial ones already created... Maybe I should just wait and let the STEP guide author figure it out for me, haha

It adds new .esp files therefore it's possible to use a mod manager [even the built-in Data Files one] to choose which ones to use.

I expect it'll be better than all the ones that merely took the game files and ran them through Photoshop. But the wholly-created textures, I dunno.